What’s Vulnerable › Vulnerabilities

CVE-2020-7054

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-01-14 · updated 2026-06-17
• Weakness: CWE-787

Description

MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c in libIEC61850 through 1.4.0 has a heap-based buffer overflow when parsing the MMS_BIT_STRING data type.

Affected products

• mz-automation libiec61850: through 1.4.0

References

• https://github.com/mz-automation/libiec61850/issues/200
• https://github.com/mz-automation/libiec61850/issues/200

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